I saw this yoke on the Internet and though it'd be a great addition to JohnRambo's arsenal. Check it out:
http://www.geogum.com/media/uploaded...0e16a1dd80.jpg
Look at this fucking thing, it's awesome. You could put a pair of twin fifty-cal machine guns under the arms and a turbo boost on the back. Them caterpillars looks strong enough to drive up the side of a skyscraper. Next time John gets langers he won't have to worry about driving his chair down stairs - fit a pair of rocket engines under the seat and he can fly out the window!
http://www.tensionnot.com/pics/album...Wheelchair.jpg
No seatbelt, though.
http://humorpix.com/images/744d612e2...size-600x0.jpg
Machine guns, rocket launchers, built-in RPG, this thing gives you maximum pwnage!!!!
:D